19148472 has 48 divisors (see below), whose sum is σ = 59270640. Its totient is φ = 5470848.

The previous prime is 19148471. The next prime is 19148473. The reversal of 19148472 is 27484191.

It is an interprime number because it is at equal distance from previous prime (19148471) and next prime (19148473).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19148471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18493 + ... + 19500.

It is an arithmetic number, because the mean of its divisors is an integer number (1234805).

Almost surely, 2^19148472 is an apocalyptic number.

19148472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19148472 is an abundant number, since it is smaller than the sum of its proper divisors (40122168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19148472 is a wasteful number, since it uses less digits than its factorization.

19148472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38012 (or 38005 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 19148472 is about 4375.8967081045. The cubic root of 19148472 is about 267.5334199955.

The spelling of 19148472 in words is "nineteen million, one hundred forty-eight thousand, four hundred seventy-two".